Nonfissionable
a. 不能产生核子分裂的
🗣️ 情景例句
Are you all alone?
就你一个人吗？
I envy you.
我羡慕你。
But this does not matter, for, as he has often remarked, one is never too old to learn.
但这没有关系，因为正如他常说的那样，人要活到老学到老。